Taxon Details
Potamogeton zosteriformis
eel-grass pondweed
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Taxon Summary:
Potamogeton zosteriformis, commonly known as eel-grass pondweed, is a annual herb (aquatic) in the Potamogetonaceae that is found in California and elsewhere. It occurs within Marshes and swamps, growing at elevations from 0 to 1860 meters. Potamogeton zosteriformis is ranked 2B.2, Plants Rare, Threatened, or Endangered in California, But More Common Elsewhere; Moderately threatened in California.|
Scientific Name: Potamogeton zosteriformis Fern. |
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Common Name: eel-grass pondweed |
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| Family: | Potamogetonaceae | |
| Element Code: | PMPOT03160 | |
| USDA Plants Symbol: | POZO | |
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Synonyms/Other Names: |
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| Name Status: |
JEF, FNA, POWO, IPNI, Tropicos |
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| CA Rare Plant Rank: | 2B.2 |
| Fed List: | None |
| State List: | None |
| Global Rank: | G5 |
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State Rank: |
S3 |
| Other Status: | |
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CRPR Changes: |
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| Add Date: | 1994-01-01 |
| Date Edited: | 2021-05-26 |
| Lifeform: annual herb (aquatic) | ||||||||||||||
Blooming Period: Jun-Jul
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Elevation:
0 - 1860 meters 0 - 6105 feet |
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General Habitats:
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| Microhabitat Details: | ||||||||||||||
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Microhabitat:
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| Threat List Total: | 4 | |
| Total EOs | % of EOs | |
| EOs with Threat Listed: | 7 | 35 % |
| THREAT LIST: | ||
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| Recreational use (non-ORV) | 6 | 30% |
| Altered flood/tidal/hydrologic regime | 2 | 10% |
| Degraded water quality | 1 | 5% |
| Non-native plant impacts | 1 | 5% |
| Total Occurrences: | 20 | ||||
| Element Occurrence Ranks: | |||||
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| A | B | C | D | X | U |
| 0 | 6 | 1 | 0 | 0 | 13 |
| Occurrence Status: | |||||
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| Historical >20 Years | 13 | ||||
| Recent <=20 Years | 7 | ||||
| Presence: | |||||
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| Presumed Extant | 20 | ||||
| Possibly Extirpated | 0 | ||||
| Presumed Extirpated | 0 | ||||
| California Endemic: | |||||||||||||
| California Island: | |||||||||||||
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States: Name (Code) Alaska (AK), California (CA), Connecticut (CT), Idaho (ID), Illinois (IL), Indiana (IN), Iowa (IA), Kansas (KS), Maine (ME), Maryland (MD), Massachusetts (MA), Michigan (MI), Minnesota (MN), Montana (MT), Nebraska (NE), New Hampshire (NH), New Jersey (NJ), New York (NY), North Dakota (ND), Ohio (OH), Oregon (OR), Pennsylvania (PA), South Dakota (SD), Utah (UT), Vermont (VT), Virginia (VA), Washington (WA), West Virginia (WV), Wisconsin (WI), Wyoming (WY) |
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California Counties and Islands: Name (Code) Contra Costa (CCA), Lake (LAK), Lassen (LAS), Mariposa (MPA), Merced (MER), Modoc (MOD), Mono (MNO), Shasta (SHA) |
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Quads: Name (Quad Code) Alturas (4112045), Benmore Canyon (3912215), Boles Meadows East (4112067), Bouldin Island (3812115), Burney Falls (4112116), Canby (4112047), Cassel (4012185), Clearlake Highlands (3812286), Clearlake Oaks (3912216), Dana (4112115), Egg Lake (4112133), Fales Hot Springs (3811934), Infernal Caverns (4112035), Jersey Island (3812116), Jess Valley (4112023), Kelseyville (3812287), Lower Lake (3812285), Lucerne (3912217), Merced Falls (3712053), Rattlesnake Butte (4112046), Washington Mtn. (4112048), Wendel (4012032) |
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Notes:
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Presumed Extant
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